81381565

素因数分解:

$5^1\times {\mathrm{149}}^1\times {\mathrm{313}}^1\times {\mathrm{349}}^1$

素因数の和:816

約数の個数: 16

約数和(自身を含む): 98910000

約数和(自身を除く): 17528435

約数列:

[1, 5, 149, 313, 349, 745, 1565, 1745, 46637, 52001, 109237, 233185, 260005, 546185, 16276313, 81381565]

約数ペア:

[(1, 81381565), (5, 16276313), (149, 546185), (313, 260005), (349, 233185), (745, 109237), (1565, 52001), (1745, 46637)]